Coordinated pivoting and extending vehicle mirror

ABSTRACT

A first power mechanism ( 20 ) is provided in association with a fixed support ( 18 ) and with a swingable structure ( 16 ) and pivots the swingable structure ( 16 ) relative to the fixed support ( 18 ) between an extended position and a folded position adjacent the vehicle. A second power mechanism ( 24 ) is operatively associated with a swingable structure ( 16 ) and a mirror housing ( 12 ) to move the mirror housing ( 12 ) between inner and outer extended positions. A third power mechanism ( 28 ) moves the mirror unit ( 14 ) into a desired adjusted position about horizontal and vertical axes. An electronic control controls the operation of the first power mechanism ( 20 ) and the second power mechanism ( 24 ) and the third power mechanism ( 28 ) to control the powered pivoting of swingable structure ( 16 ) and to control the generally horizontal movement of mirror housing ( 12 ) to various positions located between inner and outer limiting positions and to adjust the mirror about vertical and horizontal axes.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The subject invention relates to a mirror assembly for attachmentto the side of an automotive vehicle and which may be adjusted tovarious positions.

[0003] 2. Description of the Prior Art

[0004] Automobiles and trucks are provided with side-mounted rear viewmirrors for providing the driver with a desired field of view extendingbehind and along the side of the vehicle. Some vehicles, such as trucksand vehicles with trailers, have side-mounted rear view mirrors withenhanced fields of view. For example, vehicles with trailers haveside-mounted rear view mirrors which extend out further than those of atypical automobile. These laterally “extended” mirrors provide thedriver with a field of view which covers an area reaching behind andalongside the trailer and which is unobstructed by the trailer.

[0005] However, a driver of a vehicle carrying a large trailer willencounter various situations in which it will be necessary to adjust theposition of an extended rear view mirror. For example, the angularposition of the mirror is adjusted to accommodate the requirements ofdifferent drivers and to accommodate changing requirements of the samedriver as the size of the truck trailer changes. A truck driver may alsoencounter obstacles such as tollgates, loading/unloading docks, narrowdriveways, and so on. When those obstacles are encountered, the mirror'slateral position may either limit the driver's ability to maneuveraround the obstacle or require the driver to manually move the mirrorbeforehand. It is often necessary to move the mirror to a position nextadjacent the vehicle to clear obstacles. In addition, there is a need tocontrol the movement of the mirror remotely from with in the vehicle.

[0006] Various assemblies are known in the prior art for adjusting amirror assembly between inner and outer extended positions, asexemplified in U.S. Pat. No. 4,911,545 to Miller and U.S. Pat. No.5,572,376 to Pace, while others disclose assemblies for rotating themirror assembly to a folded position adjacent the vehicle, asexemplified in U.S. Pat. No. 4,363,534 to Covert, U.S. Pat. No.5,375,014 to Fujie et al and U.S. Pat. No. 5,703,732 to Boddy et al.However, there remains a need for a mirror assembly which can beremotely controlled by power to both be extended and retracted as wellas be rotated or pivoted to a folded position adjacent the vehicle.

SUMMARY OF THE INVENTION AND ADVANTAGES

[0007] The subject invention provides a vehicle mirror assembly whichcan be remotely controlled by power to both be extended and retracted aswell as be rotated or pivoted to a folded position adjacent the vehicle.The improved mirror assembly comprises a fixed support adapted to bemounted on a vehicle. A swingable structure is pivotally supported byand extends laterally from the fixed support to a distal end for pivotalmovement about a generally upright axis between an operative positionextending laterally and a folded position extending transversely to theextended position. A mirror housing is supported at the distal end ofthe swingable structure. A first power mechanism pivots the swingablestructure about the upright axis between the operative and the foldedpositions. And a second power mechanism operatively interconnects theswingable structure and the mirror housing for moving the mirror housingrelative to the fixed support to various positions of adjustment betweeninner and outer limiting positions.

[0008] Accordingly, the subject invention provides a mirror assemblythat can be remotely controlled by power to be both extended andretracted as well as rotated or pivoted to a folded position adjacentthe vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other advantages of the present invention will be readilyappreciated, as the same becomes better understood by reference to thefollowing detailed description when considered in connection with theaccompanying drawings wherein:

[0010]FIG. 1 is a perspective view showing the mirror assembly in anextended position relative to a vehicle;

[0011]FIG. 2 is a perspective view of certain components of the mirrorassembly in a retracted position relative to the vehicle;

[0012]FIG. 3 is an exploded view of the components shown in FIG. 2;

[0013]FIG. 4 is a front view of the components shown in FIG. 2;

[0014]FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG.4;

[0015]FIG. 6 is a perspective view of an alternative arrangement of thecomponents shown in FIG. 2;

[0016]FIG. 7 is an enlarged cross-sectional side view of the fixedsupport assembly;

[0017]FIG. 8 is a sectional view taken along the line 8-8 of FIG. 7;

[0018]FIG. 9 is a sectional view taken along the line 9-9 of FIG. 7;

[0019]FIG. 10 is an enlarged fragmentary sectional view of the pivotassembly as shown in FIG. 9;

[0020]FIG. 11 is a view similar to FIG. 10 showing the position of thecomponents during the movement of the housing assembly from itsoperative position to the rear fold position;

[0021]FIG. 12 is a view similar to FIG. 10 showing the position of thecomponents during the movement of the housing assembly from itsoperative position to the forward fold position; and

[0022]FIG. 13 is a block diagram of a control system for controlling theoperation of the various illustrated power mechanisms.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0023] Referring now to the drawings in greater detail, FIG. 1illustrates a vehicle mirror assembly 10, which includes a mirrorhousing 12 supported by a swingable structure 16. A fixed support 18 isconstructed and arranged to be fixedly mounted on a vehicle 19 andsupports swingable structure 16 in an operative position extendinglaterally outwardly from the vehicle. Mirror housing 12 is providedwith, among other elements, a mirror unit 14, which serves as anexterior rear view mirror for the vehicle's driver.

[0024] A first power mechanism 20 is provided in association with thefixed support 18 and with swingable structure 16, and is arranged toenable swingable structure 16 to be pivoted with respect to fixedsupport 18 about a generally upright axis defined by the axis ofrotation of first power mechanism 20. Swingable structure 16 may then bepivoted (1) between its operative position (extending laterallyoutwardly from the vehicle to allow the driver of the vehicle to utilizemirror unit 14 as an exterior rear view mirror) and a folded position inresponse to power operation of first power mechanism 20. The first powermechanism 20 further allows swingable structure 16 to be pivoted fromits operative position in either direction in response to an unwantedimpact below applied in either direction to either swingable structure16 or to mirror housing 12. In the illustrated embodiment, the foldedposition of swingable structure 16 in response to power operation offirst power mechanism 20 is the position at which the face of mirrorunit 14 is put in close proximity or next adjacent to the vehicle; forexample, almost touching the side panel of the vehicle's door (notshown).

[0025] A second power mechanism 24, as shown in FIGS. 2 and 3, isoperatively associated with a swingable structure 16 and mirror housing12 to move mirror housing 12 between inner or retracted (see FIG. 2) andouter or extended (see FIG. 1) limiting positions into a desiredposition of adjustment upon the power operation of the second powermechanism 24. The mirror holder 26 comprises an electrically poweredthird power mechanism 28 operatively associated with mirror housing 12and mirror holder 26 to move mirror unit 14 into a desired adjustedposition about horizontal and vertical axes.

[0026]FIG. 2 shows main housing portion 40 in the inner limitingposition with respect to upper support arm 32 and lower support arm 34.The second power mechanism 24 is shown having a cover 42, which servesas a mirror holder support for carrying mirror holder 26. The firstpower mechanism 20 has an upper casing 44 secured to a lower casing 46.Upper support 32 comprises an upper mating portion 48 for mating with acylindrical drive member of first power mechanism 20 and a lower matingportion 49 inserted within a cylindrical recess provided in a lowerportion of first power mechanism 20.

[0027]FIG. 3 shows an exploded view of the components shown in FIG. 2.As illustrated in FIG. 3, the second power mechanism 24 comprises aclutch assembly 58, a motor 62, a primary shaft 64, an intermediateshaft 66, and an upper drive pinion gear 54. The upper drive pinion gear54 is mountable on an upper shaft 56, while clutch assembly 58 ismountable within a recess 60 provided at a mid-portion of mountingstructure 52. Also included are a worm 74, a shaft 76, a lower pinion78, a worm gear 80, a spring 82, and a push nut 84.

[0028]FIGS. 4 and 5 further illustrate the manner in which the variouscomponents of the second power mechanism 24 are assembled andinteroperate to move mirror housing 12 between inner and outer limitingpositions in relation to swingable structure 16, which comprises upperand lower support arms 32, 34 in the illustrated embodiment.

[0029] In their assembled states, upper pinion gear 54 mates with lowerpinion gear 78. Lower pinion gear 78 is driven by worm gear 80 whichinterfaces with worm 74 of intermediate shaft 66. Intermediate shaft 66is set into rotation by a gear 68 of primary shaft 64 interfacing withgear 72 of intermediate shaft 66. Motor worm drive shaft 63 of motor 62interfaces with gear 70 to cause primary shaft 64 to rotate.

[0030]FIG. 5 shows a cross-section of the assembly shown in FIG. 4 takenalong the line 5-5. Each of upper and lower support arms 32, 34 includesa respective lower rack 50 and upper rack 51, each of which runslongitudinally along opposing lower and upper surfaces of the supportarms 32 and 34. The rack 51 interfaces with the upper pinion 54. Thelower rack 50 of lower support arm 34 interfaces with the lower pinion78. The upper pinion 54 is mounted on a shaft 56, which in theillustrated embodiment is integrally formed with mounting structure 52.Clutch assembly 58 is mounted on a shaft 76, which is provided within arecess 60 of mounting structure 52. As described previously, in theillustrated embodiment, clutch assembly 58 includes the lower pinion 78,a worm gear 80, a spring 82, and a push nut 84. The worm gear 80comprises an extending portion 83 and a first clutch face 81. The lowerpinion 78 comprises a second clutch face 79. When clutch assembly 58 isassembled as shown in FIG. 5, first clutch face 81 comes into contactwith second clutch face 79.

[0031] The upper pinion 54 is disposed so that it extends through uppergear opening 86 in a manner to allow interfacing with rack 51 of uppersupport arm 32. Similarly, worm gear 80 and lower pinion 78 are disposedin lower gear opening 88, and lower pinion 78 extends through lower gearopening 88 in a manner so that lower pinion 78 can interface with rack50 of lower support arm 34.

[0032] The assembly shown in FIG. 6 includes the same basic components,just arranged in a different orientation relative to one another.

[0033] Referring to FIGS. 3 and 7, the illustrated vehicle mirrorassembly is assembled by coupling upper mating portion 48 withcylindrical drive portion 90 of the first power mechanism 20 andconcurrently inserting lower mating portion 49 into cylindrical opening92 provided in the bottom portion of the first power mechanism 20. Theupper and lower support arms 32 and 34 are then inserted into sleeves 36and 38. The various gears and moving components are then assembledwithin mounting structure 52. Once the various components are mountedwithin mounting structure 52, the resulting assembly is then secured toan inner portion of main housing portion 40, and the upper and lowersupport arms 32, 34 fit within voids located behind mounting structure52 in a manner so that racks 51, 50 of upper and lower support arms 32,34 mesh with the upper and lower pinions 54, 78. The cover 42 of thesecond power mechanism 24 is then secured to the open face of mountingstructure 52. Mirror holder 26 and mirror unit 14 are then to be mountedto form a resulting mirror housing 12 as shown in FIG. 1.

[0034] In operation, the first power mechanism 20 is operable to pivotswingable structure 16, comprising upper and lower support arms 32, 34in the illustrated embodiment, between an operative position, as shownin FIG. 1, and a folded position whereby mirror unit 14 is moved towardthe direction at which it is proximate to and faces the side of vehicle19. The first power mechanism 20 is further structured and arranged toenable swingable structure 16 to be pivoted from its operative position,as shown in FIG. 1, toward either direction—either in a counterclockwiseor clockwise direction—in response to an unwanted impact below appliedin either direction to swingable structure 16 or to mirror housing 12.

[0035] All of the power mechanisms 20, 24 and 28 are electricallyoperated. As illustrated in FIG. 13, an electronic control system may beprovided for controlling the operation of the first power mechanism 20and the second power mechanism 24 to control the powered pivoting ofswingable structure 16 and to control the generally horizontal movementof mirror housing 12 to various positions located between inner andouter limiting positions. Such a control mechanism may be configured tocontrol the operation of the first power mechanism 20 independently ofthe operation of the second power mechanism 24, or the relativeoperations can be synchronized or otherwise dependent upon each other.Such a control system would also control the adjustment of the mirrorabout vertical and horizontal axes by the third power mechanism 26. Thecontrol system includes a switch or switches 94 for manually actuatingeach of the power mechanisms 20, 24 and 28. The control system includesa microprocessor 96 for memorizing adjusted positions of the powermechanisms 20, 24 and 28.

[0036] The second power mechanism 24 is operatively associated withswingable structure 16 and housing assembly 12 to move mirror housing 12between an inner limiting position as shown in FIG. 2 and an outerlimiting position as shown in FIG. 1 into any desired position ofadjustment along the continuum between the inner and outer limitingpositions.

[0037] As illustrated in FIG. 7, the first power mechanism 20 is made upof a series of components constructed and arranged to be assembled withrespect to a fixed structure 100 in a predetermined sequence of downwardmovements into a predetermined cooperation relative to one another. Thecomponents include an inner fixed tubular member 102 and an outer fixedtubular member 104 which are fixed to fixed structures 100 and 101concentric with the upright pivotal axis provided by the first powermechanism 20. Also provided are a reversible electric motor 110 disposedwithin inner tubular member 102 and a speed reducing motion transmittingassembly, generally indicated at 106, between an output shaft 108 ofelectric motor 110 and swingable structure 16. Inner fixed tubularmember 102 is preferably made of cast iron, steel, or similar metal soas to constitute a flux yoke for electric motor 110. The outer fixedtubular member is also preferably made of metal such as steel or thelike.

[0038] Motion transmitting assembly 106 includes an elongated shaft 112and a stub shaft 115 which are the first components to be assembled bydownward movements into an upwardly opening bearing groove (not shown)and an upwardly opening bore (not shown) respectively formed in fixedstructure 101. Motion transmitting assembly 106 also includes a drivegear 116, which, as shown, preferably is either a worm gear fixed onmotor output shaft 108 and a driven gear 114 in the form of a worm wheelon elongated shaft 112 disposed in meshing relation with worm gear 116.Fixed on elongated shaft 112 is a secondary drive gear 118, which alsois preferably a worm gear. A secondary drive gear in the form of a wormwheel 120 is fixed on stub shaft 114 in meshing relation with secondaryworm gear 118. Fixed to stub shaft 114 above gear 120 is a pinion gear122 which meshes with a ring gear 124 having teeth 126 on its interiorperiphery for meshing, with pinion gear 122. Ring gear 124 rests on anexterior annular flange 128 formed on the lower end of inner tubularmember 102.

[0039] Speed reducing motion transmitting assembly 106 is anon-self-reversing assembly in the sense that the first worm gear set114, 116 as well as the second worm gear set 118, 120, while capable ofbeing driven in either direction by reversible motor 110, will preventmovement in either direction against that of motor 110.

[0040] The bearing groove provided for elongated shaft 112 is enlargedin the area of the first worm gear set 114, 116 and the second worm gearset 118, 120 in that elongated shaft 112 and stub shaft 115 can be moveddownwardly together during assembly of one after the other. In theillustrated embodiment, electric motor 110 is fixedly mounted withininner tubular member 102 which is the next component to be assembled bymoving an exterior flange 128 on the lower end thereof into engagementwith fixed structure 101. The inner tubular member has an L-shaped wallportion 130 in one side thereof, the horizontal lug of which isapertured to receive a bearing 132 within which the upper end of stubshaft 115 is journalled.

[0041] In order to positively prevent movement of inner tubular member102 about its axis which is concentric to the pivotal axis, flange 128may be suitably pinned to the fixed structure 100/101 or otherwiseprevent it from turning about its axis. Inner tubular member 102 withelectric motor 110 fixed thereto are assembled in such a way as to bringworm gear 116 into meshing relation with worm wheel 114. Moreover, sincemotor 110 is fixed on fixed structure 100/101, suitable grooves (notshown) can be formed in fixed structure 101 to accommodate electricalcontrol wires (not shown) for motor 110.

[0042] Ring gear 66 forms part of a sub-assembly which is mounted withina movable tubular member 134. Movable tubular member 134 is preferablymolded of a suitable plastic material. The sub-assembly includingmovable tubular member 134 may be regarded as a component of the firstpower mechanism 20.

[0043] The sub-assembly includes a spring biased indexing system,generally indicated at 136 mounted between gear 124 and movable tubularmember 134. As best shown in FIGS. 7 and 8, indexing system 136 includesan indexing ring 138 which is keyed to the interior periphery of movabletubular member 134, as by key elements 140, so that it can move axiallywith respect to movable tubular member 134 but must move with movablemember 134 as it turns about its vertical axis. Movable tubular member134 includes a radially extending portion 142 and its upper midsectionwhich provides a downwardly facing surface on the interior periphery ofmovable tubular member 134. A coil spring 144 for biasing indexingsystem 136 has its upper end seated on the downwardly facing surface ofportion 142 and its lower end seated on indexing ring 138. Indexing ring138 has four annularly spaced downwardly opening recesses 146 formedtherein, the arcuate extent of which are defined by opposite inclinedsurfaces. Ringer 124 has four annularly spaced indexing projections 148which are shaped to be received in recesses 146. The sub-assembly piecescomprising coil spring 144, indexing 138, and ring gear 124, are movedrespectively into the interior periphery of movable tubular member 134and retained therein with the spring in stressed condition by aconventional C clip 150.

[0044] Movable tubular member 134 with its contained sub-assembly isassembled next by being moved downwardly over inner tubular member 102to mesh ring gear 124 with pinion gear 122 until the lower end ofmovable tubular member 134 rests on fixed structure 101.

[0045] Outer tubular member 104 is the last component of first powermechanism 20 to be assembled. Outer tubular member 104 has an exteriorlyextended flange 152 at its lower end and an interiorly directed flange154 at its upper end. The axial extent of the outer tubular member 104is greater than the axial extent of the movable tubular member 134 belowradial portion 142 but less than the full axial extent thereof. Therelative axial sizes are such that, when outer tubular member 104 isassembled over movable tubular member 134 with lower flange 152 engagingfixed structure 101, annular space is left between the lower surface ofupper flange 154 and the upper surface of radial portion 142. Withinthis annular space, a spring biased control system, generally indicatedat 156, is mounted.

[0046] As best shown in FIGS. 9-12, spring biased control system 156includes a biasing spring 158 in the form of a wavy ring of spring steelmounted over the upper periphery of movable tubular member 134 until itis seated on the upper surface of radial portion 142. Control system 156also includes a control ring 160 which is mounted over the upperperiphery of the movable tubular member until it is seated on wavy ringspring 158. Control ring 160 is keyed to the upper exterior periphery ofmovable tubular member 134 by key elements 162 so that it must move withmovable tubular member 134 when it turns about its axis but may haveaxial movement against spring 158 with respect to movable tubular member134.

[0047] Control ring 160 constitutes a movable control structure which isconnected through motion transmitting assembly 106 and spring-biasedindexing system 136 to move with swingable structure 16. Upper flange154 of outer tubular member 104 constitutes a fixed control structurewhich is fixed with respect to fixed structures 100, 101.

[0048] Control structures 154 and 160 provide interengaging controlsurfaces which may take any desired form capable of achieving thefunctions hereinafter specified. However, as shown, the control surfacesinclude a flat radially disposed inner upwardly facing annular surface164 formed on control ring 100 and a mating flat radially disposed innerdownwardly facing annular surface 166 on flange 154. It will be notedthat annular control surface 164 may be divided into discrete arcuatesurface portions by the recesses provided which receive key elements162. Control ring 160 includes a pair of annularly spaced relativelylarge arcuate projections 168 disposed outwardly of the annular controlsurface 164 thereof. Projections 168 define control surfaces which foreach projection 168 include a flat radially disposed upwardly facingarcuate surface 170 having an inclined surface 172 extending downwardlyand arcuately away from each end thereof.

[0049] The annular flange 154 includes a pair of annularly spacedrelatively small arcuate projections 174 disposed outwardly of annularcontrol surface 166. Projections 174 define control surfaces which foreach projection 174 includes a flat radially disposed downwardly facingarcuate surface 176 having an inclined surface 278 extending upwardlyand arcuately away from each end thereof.

[0050] Referring again to FIG. 7, final assembly of pivot assembly iscompleted by extending fasteners 180 through recesses provided and lowerflanged portions of fixed structure 100 and securing fasteners 180 intocorresponding recesses provided within fixed structure 101.

[0051] Further details concerning the structure of first power mechanism20 may be implemented in accordance with the description provided incommonly-assigned U.S. Pat. No. 5,703,732.

[0052] While the invention has been described with reference to apreferred embodiment, it is understood that the words that have beenused herein are words of description, rather than words of limitation.Changes may be made, within the purview of the appended claims, withoutdeparting from the scope and spirit of the invention in its aspects.Although the invention has been described herein in reference toparticular elements, materials and embodiments, it is understood thatthe invention is not to be limited to the particulars disclosed herein,and that the invention extends to all equivalent structures, methods,and uses, such as are within the scope of the appended claims.

What is claimed is:
 1. A vehicle mirror assembly comprising; a fixedsupport adapted to be mounted on a vehicle, a swingable structurepivotally supported by and extending laterally from said fixed supportto a distal end for-pivotal movement about a generally upright axisbetween an operative position extending laterally and a folded positionextending transversely to said extended position, a mirror housingsupported at said distal end of said swingable structure, a first powermechanism for pivoting said swingable structure about said upright axisbetween said operative and said folded positions, and a second powermechanism operatively interconnecting said swingable structure and saidmirror housing for moving said mirror housing relative to said fixedsupport to various positions of adjustment between inner and outerlimiting positions.
 2. An assembly as set forth in claim 1 including amirror unit, a third power mechanism movably supporting said mirror unitin said mirror housing for adjusting the position of said mirror unitrelative to said mirror housing about horizontal and vertical axes. 3.An assembly as set forth in claim 1 wherein said second power mechanismincludes a rack and pinion.
 4. An assembly as set forth in claim 3wherein said rack is disposed on said swingable structure and saidpinion is rotatably supported on said mirror housing.
 5. An assembly asset forth in claim 4 wherein said swingable structure includes a pair ofparallel and spaced support arms, each of said support arms includingone of said racks, a pair of said pinions rotatably supported by saidmirror housing and with one pinion in meshing engagement with one ofsaid and the other pinion in meshing engagement with the other of saidracks.
 6. An assembly as set forth in claim 5 wherein said pinions arein meshing engagement with one another, a worm gear in drivingrelationship with one of said pinions and a worm in meshing engagementwith said worm gear, a motor in driving relationship with said worm. 7.An assembly as set forth in claim 2 an electronic control system forcontrolling power to said power mechanisms.
 8. An assembly as set forthin claim 7 wherein said control system includes a switch for actuatingeach of said power mechanisms.
 9. An assembly as set forth in claim 7wherein said controls system includes a microprocessor for memorizingadjusted positions of said power mechanisms.
 10. A vehicle mirrorassembly comprising: a housing assembly; a mirror unit carried by saidhousing assembly; a swingable support structure constructed and arrangedto support said housing assembly thereon for generally horizontalmovement between inner and outer limiting positions; a fixed supportassembly constructed and arranged to be fixedly mounted on a vehicle andto support said swingable support structure in an operative positionextending laterally outwardly from the vehicle so that said mirror unitserves as an exterior rear view mirror for the driver of the vehicle; apower operated pivot assembly operatively associated with said fixedsupport assembly and said swingable support structure constructed andarranged to enable said swingable support structure to be pivoted withrespect to said fixed support assembly about a generally upright axis(1) between an operative position thereof and a folded position withrespect to the vehicle in response to a power operation of said pivotassembly and (2) from the operative position thereof in either directionis response to an unwanted impace blow applied in either direction tosaid swingable support structure or to said housing assembly; and apower operated housing moving assembly operatively associated with saidswingable support structure and said housing assembly to move saidhousing assembly between said inner and outer limiting positions into adesired position of adjustment upon the power operation of said movingassembly.
 11. A vehicle mirror assembly as defined in claim 10, whereinsaid mirror unit includes a mirror and a mirror holder for receiving andretaining said mirror therein, and a power operated mirror adjustmentmechanism operatively associated with said housing assembly and saidmirror holder to move said mirror into a desired adjusted position abouthorizontal and vertical axes.